LT3344358T - Polymeric microparticles as filtration and/or clarifying aids in phosphoric acid production - Google Patents
Polymeric microparticles as filtration and/or clarifying aids in phosphoric acid productionInfo
- Publication number
- LT3344358T LT3344358T LTEP16767086.8T LT16767086T LT3344358T LT 3344358 T LT3344358 T LT 3344358T LT 16767086 T LT16767086 T LT 16767086T LT 3344358 T LT3344358 T LT 3344358T
- Authority
- LT
- Lithuania
- Prior art keywords
- filtration
- phosphoric acid
- acid production
- polymeric microparticles
- clarifying aids
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/18—Phosphoric acid
- C01B25/234—Purification; Stabilisation; Concentration
- C01B25/235—Clarification; Stabilisation to prevent post-precipitation of dissolved impurities
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/18—Phosphoric acid
- C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
- C01B25/222—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
- C08F20/04—Acids, Metal salts or ammonium salts thereof
- C08F20/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
- C08F20/52—Amides or imides
- C08F20/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F20/56—Acrylamide; Methacrylamide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/01—Separation of suspended solid particles from liquids by sedimentation using flocculating agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2800/00—Copolymer characterised by the proportions of the comonomers expressed
- C08F2800/20—Copolymer characterised by the proportions of the comonomers expressed as weight or mass percentages
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2810/00—Chemical modification of a polymer
- C08F2810/20—Chemical modification of a polymer leading to a crosslinking, either explicitly or inherently
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Geology (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201562212835P | 2015-09-01 | 2015-09-01 | |
| PCT/US2016/049926 WO2017040795A1 (en) | 2015-09-01 | 2016-09-01 | Polymeric microparticles as filtration and/or clarifying aids in phosphoric acid production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LT3344358T true LT3344358T (en) | 2020-06-25 |
Family
ID=56943939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LTEP16767086.8T LT3344358T (en) | 2015-09-01 | 2016-09-01 | Polymeric microparticles as filtration and/or clarifying aids in phosphoric acid production |
Country Status (12)
| Country | Link |
|---|---|
| US (2) | US10246332B2 (en) |
| EP (1) | EP3344358B1 (en) |
| CN (1) | CN108495697A (en) |
| CA (1) | CA2997129A1 (en) |
| IL (1) | IL257825A (en) |
| LT (1) | LT3344358T (en) |
| MA (1) | MA42071B1 (en) |
| MX (1) | MX2018002615A (en) |
| PH (1) | PH12018500453A1 (en) |
| RU (1) | RU2018111389A (en) |
| TN (1) | TN2018000068A1 (en) |
| WO (1) | WO2017040795A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3073218B1 (en) | 2017-11-09 | 2022-04-01 | Coatex Sas | PHOSPHORIC ACID PREPARATION |
| CN110467213A (en) * | 2019-09-11 | 2019-11-19 | 武汉工程大学 | A method of calcium sulfate crystal whiskers are prepared using High-Mg phosphate tailings |
| CN114671419B (en) * | 2022-04-06 | 2024-04-12 | 武汉强盛科技有限公司 | Settling agent and method for rapidly reducing solid content of wet-process phosphoric acid |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3480853A (en) | 1967-06-28 | 1969-11-25 | Vernon W Cloninger | Ignition spark tester including compression release vent |
| US3644091A (en) | 1970-03-17 | 1972-02-22 | Exxon Research Engineering Co | Clarification of phosphoric acid |
| US4263148A (en) * | 1979-04-09 | 1981-04-21 | Earth Sciences, Inc. | Process for removing humic matter from phosphoric acid solutions |
| US4291005A (en) | 1979-04-23 | 1981-09-22 | American Cyanamid Company | Settling out suspended solids in phosphoric acid product solutions |
| US4402920A (en) | 1981-03-27 | 1983-09-06 | Wyoming Mineral Corporation | Humic flotation of wet process phosphoric acid as a pretreatment step in the recovery of uranium |
| US4569768A (en) | 1983-10-07 | 1986-02-11 | The Dow Chemical Company | Flocculation of suspended solids from aqueous media |
| US4800071A (en) | 1988-05-03 | 1989-01-24 | Nalco Chemical Company | Filtration aids for removal of calcium solids from aqueous phosphoric acid |
| US4968435A (en) | 1988-12-19 | 1990-11-06 | American Cyanamid Company | Cross-linked cationic polymeric microparticles |
| US6130303A (en) * | 1988-12-19 | 2000-10-10 | Cytec Technology Corp. | Water-soluble, highly branched polymeric microparticles |
| US5009873A (en) | 1990-01-29 | 1991-04-23 | Nalco Chemical Company | Crystal modification in wet process phosphoric acid production |
| US5171808A (en) | 1990-06-11 | 1992-12-15 | American Cyanamid Company | Cross-linked anionic and amphoteric polymeric microparticles |
| US5185135A (en) * | 1991-08-12 | 1993-02-09 | Nalco Chemical Company | Method of dewatering a wet process phosphoric acid slurry |
| US5173280A (en) | 1991-10-15 | 1992-12-22 | Calgon Corporation | Method of clarifying phosphoric acid using high charge sulfonic-type polymers |
| US5211928A (en) | 1991-10-15 | 1993-05-18 | Calgon Corporation | Method of improving gypsum slurry filtration in the production of phosphoric acid |
| US5318707A (en) | 1992-08-28 | 1994-06-07 | Calgon Corporation | Method of clarifying phosphoric acid |
| US5286806C1 (en) | 1993-05-14 | 2001-01-30 | Cytec Tech Corp | Methods of making and using high molecular weight acrylamide polymers |
| US5380444A (en) | 1994-02-23 | 1995-01-10 | Cytec Technology Corp. | Ampholytic polymers and polymeric microemulsions |
| US7563378B2 (en) | 2005-11-08 | 2009-07-21 | Arr-Max Products, LP | Dual injection of two polymeric filtration aids for gypsum removal from phosphoric acid/gypsum slurry |
| US9187327B2 (en) | 2011-01-04 | 2015-11-17 | Nalco Company | Phosphoric acid production gypsum filtration flocculant pre-dilution (make down) with post-filtration phosphoric acid |
| CN103466577B (en) * | 2013-09-04 | 2016-01-20 | 贵州锦麟化工有限责任公司 | Improve the method for phosphoric acid by wet process quality |
-
2016
- 2016-09-01 CA CA2997129A patent/CA2997129A1/en not_active Abandoned
- 2016-09-01 CN CN201680063153.8A patent/CN108495697A/en active Pending
- 2016-09-01 EP EP16767086.8A patent/EP3344358B1/en active Active
- 2016-09-01 LT LTEP16767086.8T patent/LT3344358T/en unknown
- 2016-09-01 RU RU2018111389A patent/RU2018111389A/en not_active Application Discontinuation
- 2016-09-01 MA MA42071A patent/MA42071B1/en unknown
- 2016-09-01 WO PCT/US2016/049926 patent/WO2017040795A1/en active Application Filing
- 2016-09-01 MX MX2018002615A patent/MX2018002615A/en unknown
- 2016-09-01 TN TNP/2018/000068A patent/TN2018000068A1/en unknown
- 2016-09-01 US US15/254,617 patent/US10246332B2/en not_active Expired - Fee Related
-
2018
- 2018-03-01 PH PH12018500453A patent/PH12018500453A1/en unknown
- 2018-03-02 IL IL257825A patent/IL257825A/en unknown
-
2019
- 2019-02-20 US US16/280,218 patent/US20190177164A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| TN2018000068A1 (en) | 2019-07-08 |
| CA2997129A1 (en) | 2017-03-09 |
| RU2018111389A3 (en) | 2020-01-27 |
| MA42071B1 (en) | 2019-10-31 |
| CN108495697A (en) | 2018-09-04 |
| EP3344358B1 (en) | 2020-03-18 |
| US20170057822A1 (en) | 2017-03-02 |
| WO2017040795A1 (en) | 2017-03-09 |
| MX2018002615A (en) | 2018-11-09 |
| US10246332B2 (en) | 2019-04-02 |
| PH12018500453A1 (en) | 2018-09-10 |
| US20190177164A1 (en) | 2019-06-13 |
| IL257825A (en) | 2018-04-30 |
| EP3344358A1 (en) | 2018-07-11 |
| RU2018111389A (en) | 2019-10-07 |
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